<?php
if (!defined('sugarEntry') || !sugarEntry) {
    die('Not A Valid Entry Point');
}
/**
 *
 * SugarCRM Community Edition is a customer relationship management program developed by
 * SugarCRM, Inc. Copyright (C) 2004-2013 SugarCRM Inc.
 *
 * SuiteCRM is an extension to SugarCRM Community Edition developed by SalesAgility Ltd.
 * Copyright (C) 2011 - 2018 SalesAgility Ltd.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License version 3 as published by the
 * Free Software Foundation with the addition of the following permission added
 * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
 * IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
 * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Affero General Public License along with
 * this program; if not, see http://www.gnu.org/licenses or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 *
 * You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
 * SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * SugarCRM" logo and "Supercharged by SuiteCRM" logo. If the display of the logos is not
 * reasonably feasible for technical reasons, the Appropriate Legal Notices must
 * display the words "Powered by SugarCRM" and "Supercharged by SuiteCRM".
 */


///////////////////////////////////////////////////////////////////////////////
////	LOCAL UTILITY
function compare($table_name, $db_indexes, $var_indexes)
{
    global $add_index, $drop_index, $change_index;
    if (empty($change_index)) {
        $change_index = array();
    }
    foreach ($var_indexes as $var_i_name=>$var_i_def) {
        //find corresponding db index with same name
        //else by columns in the index.
        $sel_db_index = null;
        $var_fields_string ='';
        if (count($var_i_def['fields'])>0) {
            $var_fields_string = implode('', $var_i_def['fields']);
        }
        $field_list_match = false;
        if (isset($db_indexes[$var_i_name])) {
            $sel_db_index = $db_indexes[$var_i_name];
            $db_fields_string = implode('', $db_indexes[$var_i_name]['fields']);
            if (strcasecmp($var_fields_string, $db_fields_string)==0) {
                $field_list_match=true;
            }
        } else {
            //search by column list.
            foreach ($db_indexes as $db_i_name=>$db_i_def) {
                $db_fields_string=implode('', $db_i_def['fields']);
                if (strcasecmp($var_fields_string, $db_fields_string)==0) {
                    $sel_db_index=$db_indexes[$db_i_name];
                    $field_list_match=true;
                    break;
                }
            }
        }

        //no matching index in database.
        if (empty($sel_db_index)) {
            $add_index[]=DBManagerFactory::getInstance()->add_drop_constraint($table_name, $var_i_def);
            continue;
        }
        if (!$field_list_match) {
            //drop the db index and create new index based on vardef
            $drop_index[]=DBManagerFactory::getInstance()->add_drop_constraint($table_name, $sel_db_index, true);
            $add_index[]=DBManagerFactory::getInstance()->add_drop_constraint($table_name, $var_i_def);
            continue;
        }
        //check for name match.
        //it should not occur for indexes of type primary or unique.
        if ($var_i_def['type'] != 'primary' and $var_i_def['type'] != 'unique' and $var_i_def['name'] != $sel_db_index['name']) {
            //rename index.
            $rename=DBManagerFactory::getInstance()->renameIndexDefs($sel_db_index, $var_i_def, $table_name);
            if (is_array($rename)) {
                $change_index=array_merge($change_index, $rename);
            } else {
                $change_index[]=$rename;
            }
            continue;
        }
    }
}
////	END LOCAL UTILITY
///////////////////////////////////////////////////////////////////////////////


///////////////////////////////////////////////////////////////////////////////
////	PROCESS
if (!is_admin($current_user)) {
    sugar_die("Unauthorized access to administration.");
}
set_time_limit(3600);
/**
 * Note: $_REQUEST['silent'] is set from ModuleInstaller::repair_indices();
 */
if (!isset($_REQUEST['silent'])) {
    $_REQUEST['silent'] = false;
}

$add_index=array();
$drop_index=array();
$change_index=array();

global $current_user, $beanFiles, $dictionary, $sugar_config, $mod_strings;;
include_once('include/database/DBManager.php');

$db = &DBManagerFactory::getInstance();
$processed_tables=array();

///////////////////////////////////////////////////////////////////////////////
////	PROCESS MODULE BEANS
(function_exists('logThis')) ? logThis("found ".count($beanFiles)." Beans to process") : "";
(function_exists('logThis')) ? logThis("found ".count($dictionary)." Dictionary entries to process") : "";

foreach ($beanFiles as $beanname=>$beanpath) {
    require_once($beanpath);
    $focus= new $beanname();

    //skips beans based on same tables. user, employee and group are an example.
    if (empty($focus->table_name) || isset($processed_tables[$focus->table_name])) {
        continue;
    }
    $processed_tables[$focus->table_name]=$focus->table_name;


    if (!empty($dictionary[$focus->object_name]['indices'])) {
        $indices=$dictionary[$focus->object_name]['indices'];
    } else {
        $indices=array();
    }

    //clean vardef defintions.. removed indexes not value for this dbtype.
    //set index name as the key.
    $var_indices=array();
    foreach ($indices as $definition) {
        //database helpers do not know how to handle full text indices
        if ($definition['type']=='fulltext') {
            continue;
        }

        if (empty($definition['db']) or $definition['db'] == $focus->db->dbType) {
            $var_indices[$definition['name']] = $definition;
        }
    }

    $db_indices=$focus->db->get_indices($focus->table_name);
    compare($focus->table_name, $db_indices, $var_indices);
}
////	END PROCESS MODULE BEANS
///////////////////////////////////////////////////////////////////////////////


///////////////////////////////////////////////////////////////////////////////
////	PROCESS RELATIONSHIP METADATA - run thru many to many relationship files too...
include('modules/TableDictionary.php');
foreach ($dictionary as $rel=>$rel_def) {
    if (!empty($rel_def['indices'])) {
        $indices=$rel_def['indices'];
    } else {
        $indices=array();
    }

    //clean vardef defintions.. removed indexes not value for this dbtype.
    //set index name as the key.
    $var_indices=array();
    foreach ($indices as $definition) {
        if (empty($definition['db']) or $definition['db'] == $focus->db->dbType) {
            $var_indices[$definition['name']] = $definition;
        }
    }

    $db_indices=$focus->db->get_indices($rel_def['table']);

    compare($rel_def['table'], $db_indices, $var_indices);
}
////	END PROCESS RELATIONSHIP METADATA
///////////////////////////////////////////////////////////////////////////////


(function_exists('logThis')) ? logThis("RepairIndex: we have ".count($drop_index)." indices to DROP.") : "";
(function_exists('logThis')) ? logThis("RepairIndex: we have ".count($add_index)." indices to ADD.") : "";
(function_exists('logThis')) ? logThis("RepairIndex: we have ".count($change_index)." indices to CHANGE.") : "";

if ((count($drop_index) > 0 or count($add_index) > 0 or count($change_index) > 0)) {
    if (!isset($_REQUEST['mode']) or $_REQUEST['mode'] != 'execute') {
        echo ($_REQUEST['silent']) ? "" : "<BR><BR><BR>";
        echo ($_REQUEST['silent']) ? "" : "<a href='index.php?module=Administration&action=RepairIndex&mode=execute'>Execute Script</a>";
    }

    $focus = new Account();
    if (count($drop_index) > 0) {
        if (isset($_REQUEST['mode']) and $_REQUEST['mode']=='execute') {
            echo ($_REQUEST['silent']) ? "" : $mod_strings['LBL_REPAIR_INDEX_DROPPING'];
            foreach ($drop_index as $statement) {
                echo ($_REQUEST['silent']) ? "" : $mod_strings['LBL_REPAIR_INDEX_EXECUTING'].$statement;
                (function_exists('logThis')) ? logThis("RepairIndex: {$statement}") : "";
                $focus->db->query($statement);
            }
        } else {
            echo ($_REQUEST['silent']) ? "" : $mod_strings['LBL_REPAIR_INDEX_DROP'];
            foreach ($drop_index as $statement) {
                echo ($_REQUEST['silent']) ? "" : "<BR>".$statement.";";
            }
        }
    }

    if (count($add_index) > 0) {
        if (isset($_REQUEST['mode']) and $_REQUEST['mode']=='execute') {
            echo ($_REQUEST['silent']) ? "" : $mod_strings['LBL_REPAIR_INDEX_ADDING'];
            foreach ($add_index as $statement) {
                echo ($_REQUEST['silent']) ? "" : $mod_strings['LBL_REPAIR_INDEX_EXECUTING'].$statement;
                (function_exists('logThis')) ? logThis("RepairIndex: {$statement}") : "";
                $focus->db->query($statement);
            }
        } else {
            echo ($_REQUEST['silent']) ? "" : $mod_strings['LBL_REPAIR_INDEX_ADD'];
            foreach ($add_index as $statement) {
                echo ($_REQUEST['silent']) ? "" : "<BR>".$statement.";";
            }
        }
    }
    if (count($change_index) > 0) {
        if (isset($_REQUEST['mode']) and $_REQUEST['mode']=='execute') {
            echo ($_REQUEST['silent']) ? "" : $mod_strings['LBL_REPAIR_INDEX_ALTERING'];
            foreach ($change_index as $statement) {
                echo ($_REQUEST['silent']) ? "" : $mod_strings['LBL_REPAIR_INDEX_EXECUTING'].$statement;
                (function_exists('logThis')) ? logThis("RepairIndex: {$statement}") : "";
                $focus->db->query($statement);
            }
        } else {
            echo ($_REQUEST['silent']) ? "" : $mod_strings['LBL_REPAIR_INDEX_ALTER'];
            foreach ($change_index as $statement) {
                echo ($_REQUEST['silent']) ? "" : "<BR>".$statement.";";
            }
        }
    }

    if (!isset($_REQUEST['mode']) or $_REQUEST['mode'] != 'execute') {
        echo ($_REQUEST['silent']) ? "" : "<BR><BR><BR>";
        echo ($_REQUEST['silent']) ? "" : "<a href='index.php?module=Administration&action=RepairIndex&mode=execute'>Execute Script</a>";
    }
} else {
    (function_exists('logThis')) ? logThis("RepairIndex: Index definitions are in sync.") : "";
    echo ($_REQUEST['silent']) ? "" : $mod_strings['LBL_REPAIR_INDEX_SYNC'];
}
